:root {
    color-scheme: light;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #f4f7fb;
    color: #172033;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        linear-gradient(135deg, rgba(24, 84, 142, 0.08), transparent 34rem),
        #f4f7fb;
}

.page-shell {
    width: min(100% - 2rem, 44rem);
    margin: 0 auto;
    padding: 4rem 0;
}

.intro {
    margin-bottom: 2rem;
}

.eyebrow {
    margin: 0 0 0.75rem;
    color: #47617d;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
p {
    margin-top: 0;
}

h1 {
    margin-bottom: 0.75rem;
    color: #111827;
    font-size: clamp(2.25rem, 4vw, 3.5rem);
    line-height: 1;
}

.intro p:last-child {
    max-width: 36rem;
    color: #526173;
    font-size: 1.05rem;
    line-height: 1.6;
}

form,
.notice {
    border: 1px solid #d8e0ea;
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 1rem 2.5rem rgba(22, 34, 51, 0.08);
}

form {
    display: grid;
    gap: 1.25rem;
    padding: 1.5rem;
}

.notice {
    margin-bottom: 1rem;
    padding: 1.25rem 1.5rem;
}

.notice h2 {
    margin-bottom: 0.4rem;
    font-size: 1.1rem;
}

.notice p {
    margin-bottom: 0;
    color: #46566b;
}

.notice.success {
    border-color: #a6d7bd;
    background: #f2fbf5;
}

.notice.error {
    border-color: #f3b0ad;
    background: #fff6f5;
}

dl {
    display: grid;
    gap: 0.75rem;
    margin: 1rem 0 0;
}

dl div {
    display: grid;
    gap: 0.15rem;
}

dt {
    color: #526173;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
}

dd {
    margin: 0;
}

.field {
    display: grid;
    gap: 0.45rem;
}

label,
.checkbox {
    color: #1f2937;
    font-weight: 700;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid #b8c4d2;
    border-radius: 6px;
    padding: 0.75rem 0.85rem;
    color: #172033;
    font: inherit;
    background: #ffffff;
}

textarea {
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    border-color: #1d70b8;
    outline: 3px solid rgba(29, 112, 184, 0.2);
}

[aria-invalid="true"] {
    border-color: #c7352b;
}

.field-hint,
.field-error {
    margin: 0;
    font-size: 0.9rem;
}

.field-hint {
    color: #66758a;
}

.field-error {
    color: #a42720;
    font-weight: 700;
}

.checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
}

.checkbox input {
    width: 1.1rem;
    height: 1.1rem;
    margin-top: 0.2rem;
    accent-color: #1d70b8;
}

button {
    justify-self: start;
    border: 0;
    border-radius: 6px;
    padding: 0.85rem 1.15rem;
    color: #ffffff;
    font: inherit;
    font-weight: 800;
    background: #1d70b8;
    cursor: pointer;
}

button:hover {
    background: #155a94;
}

button:focus {
    outline: 3px solid rgba(29, 112, 184, 0.28);
    outline-offset: 2px;
}

@media (max-width: 42rem) {
    .page-shell {
        width: min(100% - 1rem, 44rem);
        padding: 2rem 0;
    }

    form,
    .notice {
        padding: 1rem;
    }
}